Note 16 - Quarterly Financial Data (Unaudited) (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Inventory Write-down			$ 19,100
Amortization of Inventory, Step-up		$ 6,000	14,800
Restructuring Charges, Total	$ 8,500		$ 18,700	$ 13,484	$ 18,704

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Balance Type:	debit
Period Type:	duration